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refactor: Replace line page's map implementation with MaplibreX - #3627
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Map the maplibrex import to a minimal local declaration so tsc doesn't compile the dependency's TypeScript sources. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Resolve imports from maplibrex's sources against assets/node_modules, add the deck.gl type packages it needs, and drop the hand-written maplibrex shim. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
lvachon1
reviewed
Nov 4, 2026
lvachon1
reviewed
Nov 4, 2026
Replace the mutating updatePopup method with a syncPopup helper that returns a new entry, so the no-param-reassign disable is no longer needed. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
MaplibreX compares the map style by reference, so a style object made every patch call map.setStyle and wipe the route shape layers. Wrap the map hook to skip setStyle when the style is unchanged. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Scope
Asana Ticket: 💈🗺️🛠️ Investigate replacing custom map component implementation with MapLibreX
Implementation
Note
🤖 I used Copilot to generate almost all of this PR, with a decent amount of back and forth. I have looked over and vetted all of the code.
You may find it easier to review this PR commit-by-commit, since each commit accomplishes an isolated bit of functionality and/or fixes a bug. Almost but not quite all of the commits were AI-generated - the first two were just me fiddling with dependencies - the ones with
robotin the prefix were Copilot.I reviewed each diff before committing it.
Screenshots
Things look pretty much the same. Here's a screenshot demonstrating that fact.
How to test
Visit a new line diagram page (1, 39, 66, Red Line) and observe the following subtle changes:
Everything else should be the same!
Note
One feature that is intentionally preserved is that the map zoom/center resets when you change the variant. That's an intentional design decision, since the route shape can vary pretty dramatically between variants, and we don't want the shape to just disappear if you change the variant (if the newly-selected one is off-screen).